"There are a number of questions that need to be answered concerning the death of Ka'Sandra Wade and what information was communicated regarding the call placed to 911," District Attorney Stephen Zappala said in a written statement. "I am not going to comment any further until reviewing a transcript of the 911 call in question as well as any history of domestic violence that may have been present between Wade and Anthony Brown."

Two officers were sent to Wade's apartment on Lowell Street and spoke with her boyfriend, Brown, through a window.

Wade's mother, Sharon Jordan, said police told her the officers left after Brown told them everything was OK.

Police said Brown shot the 33-year-old Wade, whose body was found Tuesday night, and the 51-year-old man killed himself after a standoff Wednesday morning at his North Homewood Avenue apartment in Point Breeze. They had a 10-year-old son together.

“It was just horrible. I mean, it’s so horrible,” said Jordan. “I am very upset with the police department right now.”

Records obtained by the Post-Gazette indicate the 911 call was placed at 10:38 p.m. Police said the 911 operator who took the call heard a commotion before the line went dead. Officers got there 13 minutes later.

“From what they're saying, they heard a muffling sound, then some rustling. I'm not for sure what really went down, but they should have tried to get in that house, because either she would have been still alive or I don't know how serious the wound was but, regardless, they could have helped my baby,” said Jordan.

Wade’s sister, Lovery Wade, told Channel 4 Action News’ Marcie Cipriani that police could have done more to help her sister.

“I believe, if they would have went inside, my sister still would have been alive,” she said.

“They could have tried to do more. I think they should have went into that house, because (if) you get a 911 call and you hear some rustling and muffling, you need to try to find that person,” said Jordan.

Allegheny County Medical Examiner Dr. Karl Williams said he could not pinpoint the exact time of Wade's death, so there's no way to know whether she was still alive when police arrived at her home.

"The Bureau of Police is conducting a homicide and internal investigation into this incident to determine if all bureau policies and procedures were followed," Police Chief Nate Harper's office said in a written statement.

Sgt. Mike LaPorte, president of the Fraternal Order of Police Fort Pitt Lodge No. 1, said the 911 call did not specify the nature of the trouble, and he defended the officers' response.

"We do due diligence on every call. If there was nothing to corroborate information they had, there was nothing there to corroborate," LaPorte said. "We do hundreds of these checks of the well-being calls. We can't break down everybody's door that calls 911. We'd be in the courtroom a lot more often."